Author Topic: Rear brake soft  (Read 326 times)

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Offline cuda

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Rear brake soft
« on: March 22, 2020, 02:26:07 pm »
Bled the brakes but I guess I waited too long, the first time I press on the rear brake it goes down when I pump it gets harder but not quite right, I remember reading about an ABS issue, so I guess to replace the ABS  module, is that it? I see a used one 103 miles from me, so is a used one a bad choice?
 I only use rear brake going slow so I've been putting it off. 
« Last Edit: March 22, 2020, 03:07:04 pm by cuda »
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Offline TimR

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Re: Rear brake soft
« Reply #1 on: March 23, 2020, 07:48:47 am »
when was your last brake fluid bleed? Rotor OK? brake pads OK? The ABS issue seems to be with the first C14 series. I've not seen a ABS problem with a 10 and above as far as I can remember.

I had a soft rear break. I use the rear in conjunction with the front. I replaced a worn rotor and installed new brake pads. Ah good firm pedal again that didn't need pumping.

It's now spring and need to do a brake fluid flush then exercise the ABS.  They paved my favorite dirt parking lot. Guess I'll have to find a new one.
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Offline Gscott

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Re: Rear brake soft
« Reply #2 on: March 23, 2020, 10:30:23 am »
When my ABS module went bad the rear brakes locked up. I believe you still have air in some part of rear brake system, doesn't the rear caliper  have two bleeders, were they both bleed?
I use a Mighty vac and yet to have a problem with air in the system.

Offline Freddy

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Re: Rear brake soft
« Reply #3 on: March 23, 2020, 10:58:44 am »
That's a good reminder to all Gscott about the 2 bleeders on the rear caliper. 

From what I've read and experienced on C14 ABS issues, the rear brake either doesn't work at all together with a solid pedal OR the rear brake locks on (even tho the early 'pebble' recalls were done).  The linked brake ABS system failure is less likely than the earlier non-linked system from what I've seen and read. 

The other problem I've seen is the rear master cyl piston seizing part way up the cylinder due to crud within.  I'd suggest pulling it off to examine to be sure it's ok - quick and easy to do.
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Offline Steve in Sunny Fla

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Re: Rear brake soft
« Reply #4 on: March 23, 2020, 02:36:42 pm »
when my 09 abs pump went bad it also locked the rear brake. I think there's just air in your system Cuda. Steve
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Offline cuda

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Re: Rear brake soft
« Reply #5 on: March 23, 2020, 11:41:12 pm »
Well, that's what I thought also,  I had the local HP bike shop change all fluids rad, clutch, brakes, the white hair guy who did the work has only worked on bikes his whole life, Steve I tried to give you the job after last years Jennings GP event but you were moving and would not answer your phone :-X
I never use the rear brake unless I'm below 10 mph, I've replaced front brakes but never rear, I'll look.  I'm a hard downshifter.
« Last Edit: March 23, 2020, 11:44:26 pm by cuda »
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Offline cuda

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Re: Rear brake soft
« Reply #6 on: March 26, 2020, 10:12:41 pm »
I'm dropping the bike  off Monday let them play with it, I was expecting the almighty MOB to chime in :19:

Hey, I want my $37.00 worth... :'(

I'll get over it, no gas for you MOB your cut off.
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Offline Steve in Sunny Fla

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Re: Rear brake soft
« Reply #7 on: March 26, 2020, 11:43:23 pm »
I'm dropping the bike  off Monday let them play with it, I was expecting the almighty MOB to chime in :19:

Hey, I want my $37.00 worth... :'(

I'll get over it, no gas for you MOB your cut off.

MOB might be social distancing. If we're lucky.  :rotflmao: :rotflmao: :rotflmao: :rotflmao: :rotflmao: :nananana: :nananana: :nananana:
 Steve
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Offline cuda

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Re: Rear brake soft
« Reply #8 on: March 27, 2020, 12:51:14 am »
Guess he is dizzy :pokestick: :allhail: making Lava lamps
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